Mixer and vaporizer.



G. W. WRIGHT.

MIXER AND VAPORIZER.

APFLIOATION FILED DEO.26,1908.

922,374. Patented May 18, 1909.

Ill -m I 4 "1min i WI 1N VEN TOR:

' A TTORNE Y.

GEORGE W.'WRIGHT, OF LAPEL, INDIANA.

I, MDLER AND VAPORIZER.

Specification of Letters Patent.

Patented May is, 1909.

Application filed December 26, 1908. Serial No. 469,499.

. reference being had to the accompanying drawings, and to the lettersand figures of reference marked thereon, which form a part of thisspecification.

This. invention relates to ap aratus for feeding'liquid and for mixinganr vaporizing the liquid with air, especially for mixing and vaporizinggasolene with atmospheric air, or for mixing as or alcohol with air, toproduce gaseous or ydrocarbon fluid-for use in explosive engines, theinvention having referenoe particularly to improved means whereby the liuid is fed and vaporized with the air. The 0 ject of the invention-is toprovide 'an improyed mixer and vaporizer of the above-mentionedcharacter of compact form and. which may be manufactured chea ly, and bedurable, efiicient and economica in use. 1

With theabove-mentioned and other objects in view the invention consistsin an improved mixer and vaporizer comprising a case having a centrallydisposed valve-seat body member therein, on which is an externallyarranged annular valve-seat, and in which are ifeed ducts terminating orhaving their outlet orifices in the valve seat, a valve for regulatingthe flow of liquid through the ducts, and a combined valve and vaporizeroperating as a piston in the case and having an internally arrangedvalve face normally seated on the valve-seat and covering the feed.ducts, all of novel construction and arrangement; and the inventionconsists further in. the parts and combinations and arrangements ofparts as hereinafter particularly described and then defined in theaccompanying claims.

Referring to the drawings Figure 1 is an elevation.- pf the improvedmixer and vapori'zer; Fig32, a longitudinal sectional view on the line AA in Fig. 1; Fig. 3, an end view or top plan of Fig. 1 partially brokenaway;

Fig. 4, an elevation or side view of the combined valve and vaporizerpartially in section; F i 5,'a.transverse sectional view on the line .B.in Fig: 2 partially broken away; Fig. 6, asfragmentary perspective viewof the portion having the valve-seat body member therein; Fig. 7, an endor plan View of the combined. valve and vaporizer slightly modified andFig. 8, a top plan of the portion of the case having the valve-seat.body member therein slightly modified.

Similar. reference characters in the drawings indicate correspondingelements or features of construction referred to herein.

As preferably constructed the case of the mixer and vaporizer comprisesa number of sections of circular form and suitably jointed and fittedtogether, there being an inlet end section 1 having internalscrew-threads 2 and external lugs 3, the sectionbeing designed toreceive the atmospheric air and to be connected to an air inlet-pi e, ifdesired. A middle section 4 is joine to the section 1, and an endsection 5 is joined to the section 4 and has external lugs 6, thethrcesections being held together rigidly by a suitable number of bolts7 connected with the lugs 3 and 6. The outlet or upper end of thesection 5 has external screw-threads 8 thereon whereby the case may beconnected tightly to the cylinder or explosion chest of anengine or to apipe. The case may be arranged either in upright position, as shown, orat any angle to the perpendicular that may be desired without detractingfrom the efficiency of the a paratus in operation, but for the purposesoi description the apparatus is considered as being vertical or with itslongitudinal axis in vertical arrangement.

The middle section 4 of the case has a circular'valve seat body member'9 supported centrally therein by means of arms 10, 11, 12, castintegrally therewith, so that air may pass between the wall of the caseand the valve seat body'rnember, the latter having a vertical duct 13therein extending centrally from the top toward the bottom thereof,andan annular valve-seat 14 is formed on the upper edge portion of the bodymember, so as to be llke the frustum of the cone in shape on its face,or beveled, the valve-seat preferably having a small annular groove 15in its face, a suitable number of feed ports. as 16, 16, 16", beingformed in the body member in communication with the duct 13 andterminating in the valve-seat 14 or in the groove 15, the feed ductsbeing arranged radially to the axis of the duct 13 and inclined thereto,so as to extend approximately at right angles to the plane of the faceof the valve-seat 14.

The ducts are 7 preferably formed by drilling, after which the upper endof the duct lit gs closed by a plug 17 or otherwise, as may be desired.

The section 4 of the case has a branch 13 formed thereon thatextendslaterally from the exterior opposite the arm 10, and has achamber 19 therein that extends through the wall of the case section andinto the valve seat body member 9 nearly to the duct 13,'there being avalveseat 20 formed at the inner end of the chamber from which extends arelatively short duct 21 that communicates with the duct 13. The branch18 hasa nipple 22 formed thereon in which is a passageway 23communicating with the chamber 19 to receive the liquid or a gaseousfluid, the nipple having external scre'w threads 24 for connecting asupply pipe thereto. A valve-stem 25 having screwthreads 25 is screwedinto the branch 18 and has a needle point valve 26 on its inner end thatoperates in connection with the valveseat 20, the outer end of'thevalve-stem having a hand-wheel 27 thereon, and a packing nut 28 isemployed to prevent leakage of the liquid from the chamber 19.

The upper or outer end of the section 5 of the case has a valve-stemguide 29 supported therein by integral arms 30 for assisting to guidethe combined valve and vaporizer which comprises an annular body part 31that is fitted closely and is movable as a piston against the inner sideof the wall of the case, and in some cases is provided with a packingring 32 to preventthe passage of air past the valve-body. The under sideof tliti valve-body has an internal annular beveled ,valve face 33formed at the inner side thereof to correspond with the contourof thevalve- I in the valve-seat, the two grooves together forming a channelwhich forms communica 45,

tion between all the feed parts 16,01 16, so that in some cases thehquidmay fill the channel while the valve is closed, and obviously, ifdesired, the valve-seat 14 may be made Without a groove 15,and also thegroove 34 may be omitted, the plain valve face and seat being shown inFigs. 7 and 8; or the groove may be made in only, one art either in thevalve-seat or in the valve-iace.

The valve-body has a flange orskirt extending from and below theunderside 31 of the valve-bod and it extends against the inner side of t1e case, so that-the under side of the valve-body is practically cupshaped to'induce the air to flow through the opening 36 of thevalve-body rather thanpast the outerv side of; the body. A suitablenumber of posts 37 are formed on the top or upper side of thevalve-body, and a disk 38 is formed on the tops thereof that preferablyhas a conical shaped under side 39 to deflect and assist in vaporizingthe liquid, the upper has a shoulder 41 adapted to engage the guide whenthe valve is lifted excessively, the valve being normally held onits'seat to cover the ports by a spring 42 extending about the stem 40and seated against the disk 38 and the guide 29.

In practical use the valve Wheel 27 will be turnedto admit liquid fromthe chamber 19 into the duct 21, from whichthe liquid will flow throughthe duct 13' and through the ports as 16 to the face 33 of the valve andinto the grooves that may be formed in the valve face and the valve seatWhere the liq,- uid will be confined until released by unseating thevalve. During the movements of the explosive engine the piston in theengipe-cylinder will at intervals produce a partia vacuum in the outletend of the case of the mixer ands-vaporizer, so that the atmosphericpressure exerted against the under side 31' of the valve-body will liftthevalve from its seat It Will be understood, of course-that the' mixerand vaporizer may be used for other purposes than that described andobviously may be operated otherwise than by section or vacuum, as forinstance the air maybe supplied in impulses by an air ump for liftingthe valve and va orizing t e liquid.

Having thus descri edthe invention, What is claimed as new, isi 1. Amixer and vaporizer including a case,

'a valve seat body member in the case having a beveled end-forminganexternal valveseat thereon, the body member having aduct therein andalso a lurality of feed-ports radiating from the not to the valve-seat,a hollow arm extending from the Wall of the case to said member forminga passageway to the duct, there being space between said member and thewall. of the case, and an annular valve body having an internal valveface normally engaging the valve seat and closing the feed-ports, thevalve body forming a piston in contact with the case and normallyclosing the space between said valve seat body member and the case. i

2. A mixer and vaporizer including a case having a valve seat bodymember rigidly supported therein with clear'space about one end of saidmember between said member and the case, the end of said member havingan annular valve-seat thereon, said member having a duct therein andalso a plurality of feed-ports radiating from the duct to thevalve-seat, an annular 'valve body having a valve face at the inner sidethereof that normally engages the valve-seat and closes the feed-ports,the valve body extending across the s ace between said member and thecase and ormin'g a piston in contact Withthe case, the valve body havingposts thereon, a disk on the posts, and a spring seated in the case andnormally holding the valve face to the 15,valve-seat.

3. A mixer and :vaporizer'including a case, a valve seat therein havinga plurality ,of feed-ports extending convergently therefrom, a duct incommunication with the feed-port sifand an annular valve having-a facenormally engaging the valve seat and covering the orifices of thefeed-ports, the valve face having a groove therein forming communicationalong the valve-seat between the feed-ports, the body of the valveforming a piston in contact with the case.

4. A mixer and vaporizer including a case having a valve-stem guide, avalve seat body member fixedly supported in the case and having anannular valve seat thereon, the body member having a duct therein andalso a plurality of feed-ports radiating from the duct to the valveseat, an annular valve body having a face normally engaging the .valveseat and closing the feed-ports, the valve body forming a piston incontact with the case, the valve body having posts thereon,.a

- disk formed on the posts, a stem on the disk engaging the guide, and as ring seated in the disk and against the gui e.

5. A mixer and'vaporizer comprising a case having a branch thereon inwhich is a contact with the case, and a va ve stem chamber, a valve seatbody member having an arm thereon that is formed integral with l thewall of the case opposite the branchand 145- having said chamberextending theretl r'oiigli", said seat body having said chamber extending thereinand having a valve seaifat the inner end of said chamber andalso a duct ex-l tending from the valve seat transversely to the case insaid seat body, said seat body having a longitudinal duct thereinextending from said transverse duct and having also an annular valveseat thereon and a plurality of feed-ports extending radially fromthelongitudinal 'duct to the valve seat, an annular valve body having aface normally engaging the annular valve seat and closing the feedports,said valve body forming a iston in mounted in said branch and extendingthrough said chamber and having a valve thereon cooperating with thevalve-seat that is formed at the inner end of said chamber.

6. In a mixer and vaporizer, the combination with a case, and a valveseat body member mounted fixedly in the case with space between the caseandthe body member, the body member having an annular valve seat thereomand having also an opening therethrough for the passage of liquid, of acombined valve and vaporizer comprising an annular valve body forming aiston in engagement with the case, the va ve body having an annularvalve face normally seated on the valve seat, the valve body-extendingacross said space and having a flange extending about the valve seatbody member and against the case, said valve body vhaving posts thereon,and a deflecting disk on the posts opposite to the valve seat bodymember.

In testimony whereof, I afiix my signature in presence of two Witnesses.

GEORGE W. WRIGHT.

Witnesses D.'E. CONRAD, W. P. BUsBY.

